A synthetic approach to stable enols was introduced and series of acyclic aliphatic solid enols were obtained and characterized. Relationship between the structure and the stability of these enols was discussed. Gaussian 09 calculations had been carried out to rationalize the stability of the enols. These enol structures were confirmed by (1)H NMR, (13)C NMR, MS, IR, partly by single crystal X-...

Thuringiensin (Thu), also known as β-exotoxin, is a thermostable secondary metabolite secreted by Bacillus thuringiensis. It has insecticidal activity against a wide range of insects, including species belonging to the orders Diptera, Coleoptera, Lepidoptera, Hymenoptera, Orthoptera, and Isoptera, and several nematode species. The chemical formula of Thu is C22H32O19N5P, and it is composed of a...

Single crystal of CdF2 codoped with the couple Ho3+/Yb3+ good optical quality were grown by a Bridgman technique after purification starting materials. Emission spectra are recorded at room temperature under UV and NIR excitation. The kinetics green red emissions arising from both (5F4, 5S2) 5F5 excited states Ho3+ ions analyzed in frame Ho3+→Ho3+ Yb3+↔Ho3+ energy transfers. luminescence decays...

The separation of azeotropic mixtures has conventionally been one the most challenging tasks in industrial processes due to fact that components mixture will undergo gas–liquid phase transition at same time. We proposed a method for separating azeotropes using hydrate formation as solid–liquid transition. feasibility hydrate-based is determined by analyzing crystal structure and chemical bonds ...

This paper is a comprehensive review of the properties LaNi5 derivatives and other AB5 compounds with CaCu5 crystal structure (A = Y, lanthanide, Th B =transition metal, Al, Ge, Si, Sn) their applications. The structures intermetallic are described considering chemical composition off-stoichiometry. Same approach conducted for metallic hydrides formed by direct reaction dihydrogen intermetallic...

Crystal structures of membrane proteins are highly desired for their use in the mechanistic understanding functions and designing new drugs. However, obtaining protein is difficult. One way to overcome this challenge with fusion methods, which have been successfully used determine many proteins, including receptors, enzymes adhesion molecules. Existing strategies can be categorized into N or C ...

BACKGROUND Mahamrutyunjaya rasa is an ayurvedic formulation used in the treatment of cardiac disorders. It contains the purified roots of Visa (Aconitum ferox), Brihati (Solanum indicum), fruits of Pippali Kana (Piper longum), Marica (Piper nigrum), Gandhaka (Sulfur), Hingula (Cinnabar) and Tankana (Sodium metaborate) as per Bhaishajya Ratnavali. The purification (shodhana) process changes the ...